ubiquity-dm crashed with ValueError in command()

[mwb53tx]

This happened during install. The installation failed because of it.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: ubiquity 2.4.8 [modified: usr/bin/ubiquity-dm usr/lib/ubiquity/ubiquity/gtkwidgets.py usr/lib/ubiquity/ubiquity/misc.py usr/share/ubiquity/apt-setup]
ProcVersionSignature: Ubuntu 2.6.35-23.41-generic 2.6.35.7
Uname: Linux 2.6.35-23-generic x86_64
Architecture: amd64
Date: Sat May 21 14:21:48 2011
ExecutablePath: /usr/bin/ubiquity-dm
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Zorin OS 4 - Release amd64
ProcCmdline: /usr/bin/python /usr/bin/ubiquity-dm vt7 :0 ubuntu /usr/bin/ubiquity --only
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=
PythonArgs: ['/usr/bin/ubiquity-dm', 'vt7', ':0', 'ubuntu', '/usr/bin/ubiquity', '--only']
SourcePackage: ubiquity
Title: ubiquity-dm crashed with ValueError in command()
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #652916, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.